Chapter 14, Problem 28CI

In a teaspoon (5.0 mL) of a liquid antacid, there are 400. mg of $\text{Mg}{(\text{OH)}}_{\text{2}}$ , and 400. mg of $\text{A1}{\left(\text{OH}\right)}_{\text{3}}$ . A 0.080 M HCl solution, which is similar to stomach acid, is used to neutralize 5.0 mL of the liquid antacid. (12.4, 14.6, 14.7, 14.8)

1. Write the equation for the neutralization of HC1 and $\text{Mg}{(\text{OH)}}_{\text{2}}$ .
2. Write the equation for the neutralization of HCl and $\text{A1}{\left(\text{OH}\right)}_{\text{3}}$ .
3. What is the pH of the HC1lsolution?
4. How many milliliters of the HC1 solution are needed to neutralize the Mg(OH)₂?
5. How many milliliters of the HC1 solution are needed to neutralize the A1(OH)₃?